AMD Radeon R9 390X vs NVIDIA Tesla K20Xm
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Nov 2012
Generation
Pirate Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1500 MHz
1300 MHz
Memory
Memory Size
8GB
6GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
384bit
Bandwidth
384.0GB/s
249.6GB/s
Render Config
Compute Units
44
—
Shading Units
2816
2688
TMUs
176
224
ROPs
64
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
1024 KB
1536 KB
Theoretical Performance
Pixel Rate
67.20 GPixel/s
40.99 GPixel/s
Texture Rate
184.8 GTexel/s
164.0 GTexel/s
FP32 (float)
5.914 TFLOPS
3.935 TFLOPS
FP64 (double)
739.2 GFLOPS
1312 GFLOPS
Graphics Processor
GPU Name
Grenada
GK110
GPU Variant
Grenada XT(215-0880004)
—
Architecture
GCN 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
6.2 billion
7.08 billion
Die Size
438 mm²
561 mm²
Board Design
TDP
275W
235W
Suggested PSU
600 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
—
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.1
Shader Model
6.3
5.1
CUDA
—
3.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.